The specific gravity of the dam shown in Figure P8.3.4 is 2.63, and the coefficient of friction between the dam and the foundation is 0.53. The depth of the water is 2 7.5 m when the reservoir is filled to design capacity. Assume that the uplift force has a triangular distribution with the maximum magnitude of 60 percent of the full hydrostatic pressure at the heel of the dam. Determine the force ratios against sliding and overturning. Neglect earthquake _and sedimentation forces.

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8 m 30 m 30 m